should bitter
Verbe régulier : bitter - bittered- bittered

Affirmation 	
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I should bitter
you should bitter
she should bitter
we should bitter
you should bitter
they should bitter 	I should be bittering
you should be bittering
she should be bittering
we should be bittering
you should be bittering
they should be bittering	I should have bittered
you should have bittered
she should have bittered
we should have bittered
you should have bittered
they should have bittered	I should have been bittering
you should have been bittering
she should have been bittering
we should have been bittering
you should have been bittering
they should have been bittering	

Négation 	
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I should not bitter
you should not bitter
she should not bitter
we should not bitter
you should not bitter
they should not bitter 	I should not be bittering
you should not be bittering
she should not be bittering
we should not be bittering
you should not be bittering
they should not be bittering	I should not have bittered
you should not have bittered
she should not have bittered
we should not have bittered
you should not have bittered
they should not have bittered	I should not have been bittering
you should not have been bittering
she should not have been bittering
we should not have been bittering
you should not have been bittering
they should not have been bittering	

Forme interrogative 	
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should I bitter?
should you bitter?
should she bitter?
should we bitter?
should you bitter?
should they bitter? 	should I be bittering?
should you be bittering?
should she be bittering?
should we be bittering?
should you be bittering?
should they be bittering? 	should I have bittered?
should you have bittered?
should she have bittered?
should we have bittered?
should you have bittered?
should they have bittered? 	should I have been bittering?
should you have been bittering?
should she have been bittering?
should we have been bittering?
should you have been bittering?
should they have been bittering? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
should I not bitter?
should you not bitter?
should she not bitter?
should we not bitter?
should you not bitter?
should they not bitter? 	should I not be bittering?
should you not be bittering?
should she not be bittering?
should we not be bittering?
should you not be bittering?
should they not be bittering? 	should I not have bittered?
should you not have bittered?
should she not have bittered?
should we not have bittered?
should you not have bittered?
should they not have bittered? 	should I not have been bittering?
should you not have been bittering?
should she not have been bittering?
should we not have been bittering?
should you not have been bittering?
should they not have been bittering?